./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfe06fc1ef2f52cf03ee60bd1d5f57aaa8aba092 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:18:50,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:18:50,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:18:50,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:18:50,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:18:50,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:18:50,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:18:50,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:18:50,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:18:50,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:18:50,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:18:50,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:18:50,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:18:50,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:18:50,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:18:50,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:18:50,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:18:50,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:18:50,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:18:50,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:18:50,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:18:50,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:18:50,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:18:50,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:18:50,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:18:50,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:18:50,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:18:50,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:18:50,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:18:50,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:18:50,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:18:50,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:18:50,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:18:50,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:18:50,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:18:50,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:18:50,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:18:50,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:18:50,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:18:50,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:18:50,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:18:50,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:18:50,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:18:50,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:18:50,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:18:50,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:18:50,466 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:18:50,466 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:18:50,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:18:50,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:18:50,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:18:50,468 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:18:50,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:18:50,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:18:50,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:18:50,469 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:18:50,469 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:18:50,469 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe06fc1ef2f52cf03ee60bd1d5f57aaa8aba092 [2019-12-07 18:18:50,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:18:50,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:18:50,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:18:50,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:18:50,577 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:18:50,577 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2019-12-07 18:18:50,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/data/4e57ddc5b/8e11e68fe9bc48a4ab12b065221db6b2/FLAGf1f1b70da [2019-12-07 18:18:51,048 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:18:51,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2019-12-07 18:18:51,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/data/4e57ddc5b/8e11e68fe9bc48a4ab12b065221db6b2/FLAGf1f1b70da [2019-12-07 18:18:51,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/data/4e57ddc5b/8e11e68fe9bc48a4ab12b065221db6b2 [2019-12-07 18:18:51,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:18:51,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:18:51,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:51,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:18:51,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:18:51,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf3238d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51, skipping insertion in model container [2019-12-07 18:18:51,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:18:51,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:18:51,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:51,654 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:18:51,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:51,722 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:18:51,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51 WrapperNode [2019-12-07 18:18:51,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:51,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:51,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:18:51,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:18:51,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:51,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:18:51,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:18:51,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:18:51,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... [2019-12-07 18:18:51,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:18:51,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:18:51,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:18:51,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:18:51,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:18:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:18:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:18:52,206 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:18:52,206 INFO L287 CfgBuilder]: Removed 112 assume(true) statements. [2019-12-07 18:18:52,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:52 BoogieIcfgContainer [2019-12-07 18:18:52,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:18:52,208 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:18:52,208 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:18:52,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:18:52,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:52,211 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:18:51" (1/3) ... [2019-12-07 18:18:52,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ed14e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:52, skipping insertion in model container [2019-12-07 18:18:52,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:52,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:51" (2/3) ... [2019-12-07 18:18:52,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ed14e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:52, skipping insertion in model container [2019-12-07 18:18:52,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:52,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:52" (3/3) ... [2019-12-07 18:18:52,214 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2019-12-07 18:18:52,247 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:18:52,248 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:18:52,248 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:18:52,248 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:18:52,248 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:18:52,248 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:18:52,248 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:18:52,248 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:18:52,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-12-07 18:18:52,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-12-07 18:18:52,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:52,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:52,281 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,281 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,281 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:18:52,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-12-07 18:18:52,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-12-07 18:18:52,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:52,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:52,286 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,286 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,289 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 51#L151true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 71#L159true main_#t~ret33 := valid_product_#res;main_~tmp~2 := main_#t~ret33;havoc main_#t~ret33; 9#L468true assume 0 != main_~tmp~2; 31#L443true ~switchedOnBeforeTS~0 := 0; 72#L489true havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 48#L510-1true [2019-12-07 18:18:52,290 INFO L796 eck$LassoCheckResult]: Loop: 48#L510-1true assume !false; 67#L178true assume test_~splverifierCounter~0 < 4; 6#L179true test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 22#L187true assume !(0 != test_~tmp~0); 19#L187-1true test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 3#L197true assume !(0 != test_~tmp___0~0); 17#L197-1true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 61#L207true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 11#L215-2true havoc __utac_acc__Specification5_spec__2_#t~ret34;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 77#L335true __utac_acc__Specification5_spec__2_#t~ret34 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34;havoc __utac_acc__Specification5_spec__2_#t~ret34; 46#L499true assume !(0 != ~pumpRunning~0); 39#L250true assume !(0 != ~systemActive~0); 50#L257true havoc __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 37#L121true __utac_acc__Specification5_spec__3_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 43#L510true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 48#L510-1true [2019-12-07 18:18:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 18:18:52,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146142958] [2019-12-07 18:18:52,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,489 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1011068557, now seen corresponding path program 1 times [2019-12-07 18:18:52,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726962835] [2019-12-07 18:18:52,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:52,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726962835] [2019-12-07 18:18:52,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:18:52,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:18:52,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095855634] [2019-12-07 18:18:52,530 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:18:52,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:18:52,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:18:52,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:18:52,541 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2019-12-07 18:18:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:18:52,568 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2019-12-07 18:18:52,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:18:52,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 101 transitions. [2019-12-07 18:18:52,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 18:18:52,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2019-12-07 18:18:52,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-12-07 18:18:52,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2019-12-07 18:18:52,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2019-12-07 18:18:52,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:18:52,578 INFO L688 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-12-07 18:18:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2019-12-07 18:18:52,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-07 18:18:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 18:18:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2019-12-07 18:18:52,599 INFO L711 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-12-07 18:18:52,599 INFO L591 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-12-07 18:18:52,599 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:18:52,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2019-12-07 18:18:52,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 18:18:52,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:52,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:52,601 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,601 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,601 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 170#L-1 havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 171#L151 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 219#L159 main_#t~ret33 := valid_product_#res;main_~tmp~2 := main_#t~ret33;havoc main_#t~ret33; 172#L468 assume 0 != main_~tmp~2; 173#L443 ~switchedOnBeforeTS~0 := 0; 203#L489 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 163#L510-1 [2019-12-07 18:18:52,601 INFO L796 eck$LassoCheckResult]: Loop: 163#L510-1 assume !false; 217#L178 assume test_~splverifierCounter~0 < 4; 166#L179 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 167#L187 assume !(0 != test_~tmp~0); 182#L187-1 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 159#L197 assume !(0 != test_~tmp___0~0); 161#L197-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 179#L207 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 176#L215-2 havoc __utac_acc__Specification5_spec__2_#t~ret34;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 177#L335 __utac_acc__Specification5_spec__2_#t~ret34 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34;havoc __utac_acc__Specification5_spec__2_#t~ret34; 216#L499 assume !(0 != ~pumpRunning~0); 196#L250 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 183#L282 assume !(0 != ~pumpRunning~0); 184#L257 havoc __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 209#L121 __utac_acc__Specification5_spec__3_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 210#L510 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 163#L510-1 [2019-12-07 18:18:52,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 18:18:52,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737105867] [2019-12-07 18:18:52,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1257825731, now seen corresponding path program 1 times [2019-12-07 18:18:52,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261831645] [2019-12-07 18:18:52,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,682 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:52,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1083065097, now seen corresponding path program 1 times [2019-12-07 18:18:52,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178911958] [2019-12-07 18:18:52,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:52,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178911958] [2019-12-07 18:18:52,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:18:52,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:18:52,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832176819] [2019-12-07 18:18:52,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:18:52,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:18:52,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:18:52,822 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand 5 states. [2019-12-07 18:18:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:18:52,914 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2019-12-07 18:18:52,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:18:52,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2019-12-07 18:18:52,919 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2019-12-07 18:18:52,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2019-12-07 18:18:52,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2019-12-07 18:18:52,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2019-12-07 18:18:52,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2019-12-07 18:18:52,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:18:52,924 INFO L688 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2019-12-07 18:18:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2019-12-07 18:18:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2019-12-07 18:18:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-12-07 18:18:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2019-12-07 18:18:52,934 INFO L711 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2019-12-07 18:18:52,934 INFO L591 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2019-12-07 18:18:52,934 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:18:52,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2019-12-07 18:18:52,936 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2019-12-07 18:18:52,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:52,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:52,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:52,937 INFO L794 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 442#L-1 havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 443#L151 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 502#L159 main_#t~ret33 := valid_product_#res;main_~tmp~2 := main_#t~ret33;havoc main_#t~ret33; 444#L468 assume 0 != main_~tmp~2; 445#L443 ~switchedOnBeforeTS~0 := 0; 477#L489 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 495#L510-1 [2019-12-07 18:18:52,937 INFO L796 eck$LassoCheckResult]: Loop: 495#L510-1 assume !false; 496#L178 assume test_~splverifierCounter~0 < 4; 438#L179 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 439#L187 assume !(0 != test_~tmp~0); 457#L187-1 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 431#L197 assume !(0 != test_~tmp___0~0); 433#L197-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 451#L207 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 448#L215-2 havoc __utac_acc__Specification5_spec__2_#t~ret34;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 449#L335 __utac_acc__Specification5_spec__2_#t~ret34 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34;havoc __utac_acc__Specification5_spec__2_#t~ret34; 494#L499 assume !(0 != ~pumpRunning~0); 487#L250 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 454#L282 assume !(0 != ~pumpRunning~0); 455#L257 havoc __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 483#L121 __utac_acc__Specification5_spec__3_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 484#L510 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 491#L335-1 __utac_acc__Specification5_spec__3_#t~ret36 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 508#L514 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 495#L510-1 [2019-12-07 18:18:52,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:52,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 18:18:52,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:52,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874445713] [2019-12-07 18:18:52,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:53,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:53,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:53,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1884702974, now seen corresponding path program 1 times [2019-12-07 18:18:53,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:53,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701057300] [2019-12-07 18:18:53,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:53,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:53,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1443458244, now seen corresponding path program 1 times [2019-12-07 18:18:53,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:53,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698922516] [2019-12-07 18:18:53,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:53,062 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:17,250 WARN L192 SmtUtils]: Spent 24.08 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 18:19:29,124 WARN L192 SmtUtils]: Spent 11.87 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 18:19:29,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:19:29 BoogieIcfgContainer [2019-12-07 18:19:29,175 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:19:29,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:19:29,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:19:29,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:19:29,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:52" (3/4) ... [2019-12-07 18:19:29,178 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:19:29,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_33bf7392-c620-4095-9b33-1c46d0b96770/bin/uautomizer/witness.graphml [2019-12-07 18:19:29,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:19:29,214 INFO L168 Benchmark]: Toolchain (without parser) took 37811.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -110.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,214 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:29,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:29,215 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,216 INFO L168 Benchmark]: RCFGBuilder took 416.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,216 INFO L168 Benchmark]: BuchiAutomizer took 36967.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -15.9 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,216 INFO L168 Benchmark]: Witness Printer took 37.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:29,218 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 416.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36967.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -15.9 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 36.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 241 SDtfs, 372 SDslu, 272 SDs, 0 SdLazy, 70 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 177]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6882} State at position 1 is {NULL=0, NULL=0, NULL=16378, NULL=6884, NULL=6882, retValue_acc=0, NULL=16376, NULL=0, NULL=6886, NULL=16372, methaneLevelCritical=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=16390, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d8b9d5f=0, NULL=6888, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69159920=0, NULL=16382, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1a82d3=0, switchedOnBeforeTS=0, \result=0, NULL=0, systemActive=1, waterLevel=1, NULL=16386, \result=1, NULL=0, NULL=0, NULL=16377, tmp___0=0, NULL=16379, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=6889, head=0, pumpRunning=0, NULL=16384, \result=0, tmp___0=0, NULL=16380, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@161a6bee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bb664c1=0, NULL=0, retValue_acc=1, NULL=16388, NULL=16381, NULL=6887, tmp___2=50, NULL=16391, NULL=16373, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=16374, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46a05442=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6544c4c8=50, NULL=16375, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d820a20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@367e4302=0, head=0, NULL=0, NULL=0, NULL=6890, NULL=0, NULL=0, NULL=16387, NULL=6885, NULL=0, NULL=16389, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L238] int pumpRunning = 0; [L239] int systemActive = 1; [L384] int cleanupTimeShifts = 4; [L483] int switchedOnBeforeTS ; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L459] int retValue_acc ; [L460] int tmp ; [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L466] tmp = valid_product() [L468] COND TRUE \read(tmp) [L488] switchedOnBeforeTS = 0 [L168] int splverifierCounter ; [L169] int tmp ; [L170] int tmp___0 ; [L171] int tmp___1 ; [L172] int tmp___2 ; [L175] splverifierCounter = 0 Loop: [L177] COND TRUE 1 [L179] COND TRUE splverifierCounter < 4 [L185] tmp = __VERIFIER_nondet_int() [L187] COND FALSE !(\read(tmp)) [L195] tmp___0 = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp___0)) [L205] tmp___2 = __VERIFIER_nondet_int() [L207] COND TRUE \read(tmp___2) [L379] systemActive = 1 [L331] int retValue_acc ; [L334] retValue_acc = pumpRunning [L335] return (retValue_acc); [L497] switchedOnBeforeTS = isPumpRunning() [L250] COND FALSE !(\read(pumpRunning)) [L257] COND TRUE \read(systemActive) [L279] int tmp ; [L282] COND FALSE !(\read(pumpRunning)) [L503] int tmp ; [L504] int tmp___0 ; [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L508] tmp = getWaterLevel() [L510] COND TRUE tmp != 2 [L331] int retValue_acc ; [L334] retValue_acc = pumpRunning [L335] return (retValue_acc); [L512] tmp___0 = isPumpRunning() [L514] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...